Iron Essentials is chelated iron that is more absorbable, easier on the stomach, and has fewer side effects (such as constipation) than standard iron preparations. Iron is an essential part of the thyroid function. Low iron stores result in low activation of the thyroid hormone in the tissues.
This can lead to fatigue, depression, restless leg syndrome (RLS), attention deficit disorder (ADD), and inability to lose weight. Also, low iron leads to anemia (low red blood cells), but many experience the symptoms above before being diagnosed with anemia.